+**409** is an [HTTP Status](/wiki/HTTP_Status) code that signals a request conflict. This usually indicates that the request could not be completed due to a conflict with the current state of the target resource, often related to [Concurrency Control](/wiki/Concurrency_Control) or versioning.
+## See also
+- [HTTP](/wiki/HTTP)
+- [Web Server](/wiki/Web_Server)
+- [Error Code](/wiki/Error_Code)
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